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Dafrimon
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Civil Engineering, Building, Construction & Architecture Energy Engineering Environmental Science Transportation

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PENGARUH CAMPURAN LIMBAH PLASTIK LDPE DAN POLYPROPYLENE SEBAGAI SUBSTITUSI CAMPURAN ASPAL TERHADAP CAMPURAN AC-WC Muhammad Vallery Al Tansha; Tiana Fatwa Maharani; Dafrimon; Amiruddin
PILAR Vol 19 No 1 (2024): Pilar: Maret 2024
Publisher : Politeknik Negeri Sriwijaya

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Abstract

In Indonesia, the most frequently used pavement for road construction is flexible pavement with the main material using asphalt. Caused of that, needed to develop asphalt technology to improve asphalt quality. One of alternative that can be used is modifying asphalt by adding other polymer materials, plastic. This study aims to determine the effect of a mixture of Low Density Polyethylene (LDPE) and Polypropylene plastic to Asphalt Concrete Wearing Course (AC-WC) mixture. Furthermore, first stage of this research is making specimens to find the Optimum Asphalt Value (KAO), then making Marshall specimens by substituting a mixture of LDPE and Polypropylene plastic with a variation of 3%; 4%; 5%; 6%; and 7% for the optimum asphalt content. Based on the results of the analysis of the Marshall characteristics data on the plastic mixture test object, the most optimum percentage of plastic value obtained is 1529,450 kg(stability value), for the flow value is 3,018 mm, VIM value is 4,950%, VFA value is 67.089%, VMA value is 15.044% and Marshall Quotient value is 506.860 %.
Pemanfaatan Limbah Batu Bata Klinker Sebagai Bahan Pengganti Agregat Halus dan Kasar Pada Campuran Beton Meisyah Irawana; Dwi Talitha Salsabila; Sukarman; Dafrimon; Yurnalis, Fido
PILAR Vol 19 No 2 (2024): Pilar: September 2024
Publisher : Politeknik Negeri Sriwijaya

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Concrete constitutes a blend of various constituents, including Portland cement, coarse aggregate (crushed stone),fine aggregate (sand), and water. As the availability of natural resources diminishes, the escalating demand forinfrastructure construction could lead to environmental repercussions if these resources are incessantly exploited.The region of South Sumatra, particularly in the Lubuklinggau vicinity, houses numerous red brick factories.Byproducts of these factories comprise Clinker/Scorched Brick Waste, characterized by its lightweight,impermeable, durable, and non-biodegradable nature. This study aims to effectively employ this waste to produceconcrete that is not only of superior quality but also economically viable. The research findings reveal that usingclinker brick waste to replace fine and coarse aggregates in a 28-day concrete mix: at 25% BBK, the concretepossesses an average compressive strength of 26.556 MPa; at 50% BBK, it reaches 34.882 MPa; at 75% BBK, itregisters 26.104 MPa; and at 100% BBK, it amounts to 17.55 MPa. Evidently, a remarkable surge in compressivestrength occurs at the 50% BBK variation, with a substantial 36.291% increase (34.882 MPa) compared to theaverage compressive strength of conventional concrete (25.594 MPa).
Co-Authors Amiruddin Dwi Talitha Salsabila Meisyah Irawana Muhammad Vallery Al Tansha Sukarman Tiana Fatwa Maharani Yurnalis, Fido